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Chroma 75 and possibly 50
Hi Everyone,
I was wondering, how efficient are the chroma day light type bulbs at growing orchids? I've been using GE plant and aquarium, but for some of my hight light phals it's not enough, I'm thinking of using a mixture of both. Anyone have any ideas or comments Thanks -Sandra |
#2
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Chroma 75 and possibly 50
I cannot speak for the 75's, but I (and several others) have noted that the
50's give plants a reddish "tanned" look, suggesting improved PAR. -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Artwork, Books and Lots of Free Info! "sandra" wrote in message ups.com... Hi Everyone, I was wondering, how efficient are the chroma day light type bulbs at growing orchids? I've been using GE plant and aquarium, but for some of my hight light phals it's not enough, I'm thinking of using a mixture of both. Anyone have any ideas or comments Thanks -Sandra |
#3
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Chroma 75 and possibly 50
"sandra" wrote in message ups.com... Hi Everyone, I was wondering, how efficient are the chroma day light type bulbs at growing orchids? I've been using GE plant and aquarium, but for some of my hight light phals it's not enough, I'm thinking of using a mixture of both. Anyone have any ideas or comments Thanks -Sandra They are about the same efficiancy as any other flourescent but have a much improved spectrum. The 50 and 75 refer to degrees kelvin, which is it apparent colour. The high the number the bluer it will be an the lower the redder. Standard flourescent bulbs are around 3000K, quite red. Warm and horticultural bulbs are usally in the mid 2000K range. The 50(5000K) bulb is very close to sunlight the 75(7500K) bulb is bluer. Blue light help keep plants short and promotes chlorophyll production. Red will promote flowering The 5000K bulb will show flowers the best. The best way to incease intensity is to add more lights or move them closer to the plants. Light intesity drops of very rapidly with distance. Even a few inches closer can double the amount of light availible. Those compact flourescent's can provide a small area of much higher light as well. |
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